Two way plow



' June 11, 1940. E. GLORF|ELD TWO WAY PLOW 2 Shets-Sheet 1 Filed Nov. 9,1939 June 11, 1940. E. GLORFIELD TWO WAY PLOW 2 Sheefs-Shet 2 Filed Nov.9, 1939 QMW Edward 'lwfzeid Patented June 11, 1940 UNITED STATES EdwardGlorfield, Burley, Idaho, 'as signor ofone-half to Arla R. Dawson,Burley, Idaho Application November 9, 1939, ser al No. 303,694 I 3Claims. (01. 97-29).

This invention relates to an operating attachment for two way plows.

At the present time, where two way plows ar employed, they areindividually adjustable or raised and lowered by a lever mechanism orthe equivalent, associated one with each of them. The present inventionaims to supplant an operating mechanism by an attachment, which willrender the operation more expeditious and efiicient and simpler, andespecially provides asingle lever operated mechanism to raise one of theplows as the other plow is lowered, and vice versa.

The more specific objects and advantages will become. apparent from aconsideration of the description following taken in connection withaccompanying drawings illustrating an operative embodiment.

In said drawings:

Figure l is a view in side elevation, showing my improvements employedin connectionwith -a two way plow drawn by a tractor, the latter beingshown fragmentarily;

Figure 2 is a plan'view of the operating attachment according to theinvention, and

Figure 3 is a rear elevation of such operating attachment.

' Referring specifically-to the drawings wherein like referencecharacters designate like or similar parts, ID designates a conventionaltractor having a two wayplow construction I I hitched thereto. Such twoway plow structure II consists of a plurality of plows or moldboards I2,each of which is carried by a'beam I3, and which beams are pivoted as atI4, to a bracket I5, detachably bolted or otherwise-fastened at I6 tothe frame or a part of the tractor II It will be clear that theplowshares I2 and their beams I3 are individually capable of beinglifted or raised vertically on a horizontal axis at' I I. Normally, suchplowshares and beams I3 have individual operating or lifting devices sothat each of them may be lifted or raised and lowered independently ofeach other as desired. 1

In accordance with the present invention, an attachment or means areprovided whereby as one beam and plowshare I2 is lifted, the other beamand plowshare I2 will be lowered or moved in the opposite direction, andvice versa. My invention supplants the devices which lift or raise andlower the beams and plowshares independently. Such device consists ofparallel bars I'I, having openings at I8, whereby they may be bolted orotherwise secured as at I9, to adjacent parts of the frame of thetractor II). For the integral, generally V-shaped, bracket 29.operating. member or lever 30 has an opening at its lower end throughwhich rockshaft 22 passes.

most part, the bars I! are of angle iron construe tion. At theirrearportions, they extend angularly upward as at and have bearing wallsor websat2l. 1 a

Spanning saidwebs 2| and journaled therein, is a rockshaft 22, heldagainst displacement in any desired manner as by means of collars 23,thereon on opposite sides of one of the bars I1 and removably secured inplace by binding screws Extending rigidly from the rockshaft 22 inlongitudinal spaced relation, and preferably at 180 apart, are cranks orarms 25 to which links 26 are pivoted, the adjacent terminals of whichmay be secured in any of a series of openings 27 in the cranks 25, toafiord adjustment. Said links 26 at their lower ends as at 28, arepivoted one to each of the beams I3.

One end of the rockshaft 22 terminates in an An Such lever asat 3I isriveted or otherwise rigidly fastened to the bracket 29 so that a veryrigid operating member for the rockshaft 22 is provided.

Adjacent said operating member or lever 30, a

toothed segment 32 is secured in any suitable way I to one of the wallsor webs 2I. Said lever 30 is equipped with a plunger or latching device33 engageable with any of the notches in the segment 32'to hold thelever in different adjusted positions. Said plunger or latch 33 isadapted for operation by any conventional means 34, provided on thelever.

As a. result of the construction described, move- 'mentof the lever 30when unlatched, in one direction will 'raise one of the plowshares I2and beam l3 while the other plowshare I2 and beam I3 will be lowered,because of the rocking of shaft 22, cranks 25 therewith, and movementofthe links 26. Both plowshares and beams I3 may be raised out ofengagement with the ground, as a result of the invention, but not at thesame level and the samemay be secured in any adjusted. position by theplunger or latch 33 and rack 32. One plowshare I2 and beam I3 is boundto move in the opposite direction to the other plowshare and beam, nomatter in whichdirection' the lever 30 is moved.' I

It is to be understood that but one type of two way plow structure hasbeen illustrated and that it is to be takenas by way of example only.Various changes may be. resorted to provided they fall within the spiritand scope of the invention.

I claim as my invention:

1. In combination with a plurality of plow devices mounted for movementrelatively to each other in a vertical plane, a rockshaft above saidplow devices, cranks extending from the rockshaft, an operating meansfor the rockshaft, suspending links from the cranks to the plow devicesto operate the latter so that one will lift as the other is lowered,bearing devices in which said rockshaft is journaled, bracket meansbelow the bearing devices to which the plow devices are pivoted, saidbearing devices and bracket means being attachable to the draft meansfor the plow devices.

2. In combination with a plurality of plow devices mounted for movementrelatively to each other in a vertical plane, a rockshaft, cranksextending from the rockshaft, an operating means for the rockshaft,connections from the cranks to the plow devices to operate the latter sothat one will lift as the other is lowered, bearing devices in whichsaid rockshaft is journaled, said bearing devices being attachable tothe draft means for the plow devices, said operating means for therockshaft comprising a lever rigid therewith, and a latch connectionbetween said lever and one of said bearing members.

3. In combination with a plurality of plow devices mounted for movementrelatively to each other in a vertical plane, a rockshaft, cranksextending from the rockshaft, an operating means for the rockshaft,connections from the cranks to the plow devices to operate the latter sothat one will lift as the other is lowered, bearing devices in whichsaid rockshaft is journaled, said bearing devices being attachable tothe draft means for the plow devices, said operating means for therockshaft comprising a lever rigid therewith, a latch connection betweensaid lever and one of said bearing members, a V- shaped bracketextending from the rockshaft, said lever being connected to therockshaft and to the free end of the latter bracket.

EDWARD GLORFIELD.

